content: /*
   * 支付宝开放平台API
   * 支付宝开放平台v3协议文档
   *
   * The version of the OpenAPI document: 2025-08-26
   * 
   *
   * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
   * https://openapi-generator.tech
   * Do not edit the class manually.
   */
  
  
  package com.alipay.v3.model;
  
  import java.util.Objects;
  import java.util.Arrays;
  import com.alipay.v3.model.PaymentFixVoucher;
  import com.alipay.v3.model.PaymentVoucherAvailableGoods;
  import com.alipay.v3.model.PaymentVoucherAvailableMerchant;
  import com.alipay.v3.model.PaymentVoucherValidPeriod;
  import com.google.gson.TypeAdapter;
  import com.google.gson.annotations.JsonAdapter;
  import com.google.gson.annotations.SerializedName;
  import com.google.gson.stream.JsonReader;
  import com.google.gson.stream.JsonWriter;
  import io.swagger.annotations.ApiModel;
  import io.swagger.annotations.ApiModelProperty;
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.List;
  
  import com.google.gson.Gson;
  import com.google.gson.GsonBuilder;
  import com.google.gson.JsonArray;
  import com.google.gson.JsonDeserializationContext;
  import com.google.gson.JsonDeserializer;
  import com.google.gson.JsonElement;
  import com.google.gson.JsonObject;
  import com.google.gson.JsonParseException;
  import com.google.gson.TypeAdapterFactory;
  import com.google.gson.reflect.TypeToken;
  
  import java.lang.reflect.Type;
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.Map;
  import java.util.Map.Entry;
  import java.util.Set;
  
  import com.alipay.v3.JSON;
  
  /**
   * PaymentVoucherUseRule
   */
  @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
  public class PaymentVoucherUseRule {
    public static final String SERIALIZED_NAME_AVAILABLE_APP_IDS = "available_app_ids";
    @SerializedName(SERIALIZED_NAME_AVAILABLE_APP_IDS)
    private List<String> availableAppIds = null;
  
    public static final String SERIALIZED_NAME_AVAILABLE_GOODS = "available_goods";
    @SerializedName(SERIALIZED_NAME_AVAILABLE_GOODS)
    private PaymentVoucherAvailableGoods availableGoods;
  
    public static final String SERIALIZED_NAME_AVAILABLE_MERCHANT = "available_merchant";
    @SerializedName(SERIALIZED_NAME_AVAILABLE_MERCHANT)
    private PaymentVoucherAvailableMerchant availableMerchant;
  
    public static final String SERIALIZED_NAME_AVAILABLE_STORE_IDS = "available_store_ids";
    @SerializedName(SERIALIZED_NAME_AVAILABLE_STORE_IDS)
    private List<String> availableStoreIds = null;
  
    public static final String SERIALIZED_NAME_FIX_VOUCHER = "fix_voucher";
    @SerializedName(SERIALIZED_NAME_FIX_VOUCHER)
    private PaymentFixVoucher fixVoucher;
  
    public static final String SERIALIZED_NAME_UNAVAILABLE_GOODS_IDS = "unavailable_goods_ids";
    @SerializedName(SERIALIZED_NAME_UNAVAILABLE_GOODS_IDS)
    private List<String> unavailableGoodsIds = null;
  
    public static final String SERIALIZED_NAME_USE_MODE = "use_mode";
    @SerializedName(SERIALIZED_NAME_USE_MODE)
    private String useMode;
  
    public static final String SERIALIZED_NAME_USE_URL = "use_url";
    @SerializedName(SERIALIZED_NAME_USE_URL)
    private String useUrl;
  
    public static final String SERIALIZED_NAME_VOUCHER_QUANTITY_LIMIT_PER_USER = "voucher_quantity_limit_per_user";
    @SerializedName(SERIALIZED_NAME_VOUCHER_QUANTITY_LIMIT_PER_USER)
    private Integer voucherQuantityLimitPerUser;
  
    public static final String SERIALIZED_NAME_VOUCHER_QUANTITY_LIMIT_PER_USER_PERIOD_TYPE = "voucher_quantity_limit_per_user_period_type";
    @SerializedName(SERIALIZED_NAME_VOUCHER_QUANTITY_LIMIT_PER_USER_PERIOD_TYPE)
    private String voucherQuantityLimitPerUserPeriodType;
  
    public static final String SERIALIZED_NAME_VOUCHER_VALID_PERIOD = "voucher_valid_period";
    @SerializedName(SERIALIZED_NAME_VOUCHER_VALID_PERIOD)
    private PaymentVoucherValidPeriod voucherValidPeriod;
  
    public PaymentVoucherUseRule() { 
    }
  
    public PaymentVoucherUseRule availableAppIds(List<String> availableAppIds) {
      
      this.availableAppIds = availableAppIds;
      return this;
    }
  
    public PaymentVoucherUseRule addAvailableAppIdsItem(String availableAppIdsItem) {
      if (this.availableAppIds == null) {
        this.availableAppIds = new ArrayList<>();
      }
      this.availableAppIds.add(availableAppIdsItem);
      return this;
    }
  
     /**
     * 可核销的支付宝小程序id  限制：  1、必须是支付宝小程序 2、如果包含重复的小程序id会自动进行去重操作。
     * @return availableAppIds
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "[\"2021238412323412\"]", value = "可核销的支付宝小程序id  限制：  1、必须是支付宝小程序 2、如果包含重复的小程序id会自动进行去重操作。")
  
    public List<String> getAvailableAppIds() {
      return availableAppIds;
    }
  
  
    public void setAvailableAppIds(List<String> availableAppIds) {
      this.availableAppIds = availableAppIds;
    }
  
  
    public PaymentVoucherUseRule availableGoods(PaymentVoucherAvailableGoods availableGoods) {
      
      this.availableGoods = availableGoods;
      return this;
    }
  
     /**
     * Get availableGoods
     * @return availableGoods
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "")
  
    public PaymentVoucherAvailableGoods getAvailableGoods() {
      return availableGoods;
    }
  
  
    public void setAvailableGoods(PaymentVoucherAvailableGoods availableGoods) {
      this.availableGoods = availableGoods;
    }
  
  
    public PaymentVoucherUseRule availableMerchant(PaymentVoucherAvailableMerchant availableMerchant) {
      
      this.availableMerchant = availableMerchant;
      return this;
    }
  
     /**
     * Get availableMerchant
     * @return availableMerchant
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "")
  
    public PaymentVoucherAvailableMerchant getAvailableMerchant() {
      return availableMerchant;
    }
  
  
    public void setAvailableMerchant(PaymentVoucherAvailableMerchant availableMerchant) {
      this.availableMerchant = availableMerchant;
    }
  
  
    public PaymentVoucherUseRule availableStoreIds(List<String> availableStoreIds) {
      
      this.availableStoreIds = availableStoreIds;
      return this;
    }
  
    public PaymentVoucherUseRule addAvailableStoreIdsItem(String availableStoreIdsItem) {
      if (this.availableStoreIds == null) {
        this.availableStoreIds = new ArrayList<>();
      }
      this.availableStoreIds.add(availableStoreIdsItem);
      return this;
    }
  
     /**
     * 可核销支付门店id。 限制：  1、available_store_ids中的门店id必须是支付宝门店id。  2、available_store_ids如果包含重复的门店id会自动进行去重操作。
     * @return availableStoreIds
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "[\"2018051000502000000011111111\",\"2018040200502000000011111111\",\"2018062800502000000022271997\"]", value = "可核销支付门店id。 限制：  1、available_store_ids中的门店id必须是支付宝门店id。  2、available_store_ids如果包含重复的门店id会自动进行去重操作。")
  
    public List<String> getAvailableStoreIds() {
      return availableStoreIds;
    }
  
  
    public void setAvailableStoreIds(List<String> availableStoreIds) {
      this.availableStoreIds = availableStoreIds;
    }
  
  
    public PaymentVoucherUseRule fixVoucher(PaymentFixVoucher fixVoucher) {
      
      this.fixVoucher = fixVoucher;
      return this;
    }
  
     /**
     * Get fixVoucher
     * @return fixVoucher
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "")
  
    public PaymentFixVoucher getFixVoucher() {
      return fixVoucher;
    }
  
  
    public void setFixVoucher(PaymentFixVoucher fixVoucher) {
      this.fixVoucher = fixVoucher;
    }
  
  
    public PaymentVoucherUseRule unavailableGoodsIds(List<String> unavailableGoodsIds) {
      
      this.unavailableGoodsIds = unavailableGoodsIds;
      return this;
    }
  
    public PaymentVoucherUseRule addUnavailableGoodsIdsItem(String unavailableGoodsIdsItem) {
      if (this.unavailableGoodsIds == null) {
        this.unavailableGoodsIds = new ArrayList<>();
      }
      this.unavailableGoodsIds.add(unavailableGoodsIdsItem);
      return this;
    }
  
     /**
     * 不可核销商品编码，商家自定义商品编码。当用户支付时，交易中的商品编码和支付券配置的商品编码有任一匹配时，不可以使用优惠券。  限制: 1、available_goods与unavailable_goods_ids只能二选一或者同时为空
     * @return unavailableGoodsIds
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "['apple-03','apple-04']", value = "不可核销商品编码，商家自定义商品编码。当用户支付时，交易中的商品编码和支付券配置的商品编码有任一匹配时，不可以使用优惠券。  限制: 1、available_goods与unavailable_goods_ids只能二选一或者同时为空")
  
    public List<String> getUnavailableGoodsIds() {
      return unavailableGoodsIds;
    }
  
  
    public void setUnavailableGoodsIds(List<String> unavailableGoodsIds) {
      this.unavailableGoodsIds = unavailableGoodsIds;
    }
  
  
    public PaymentVoucherUseRule useMode(String useMode) {
      
      this.useMode = useMode;
      return this;
    }
  
     /**
     * 核销跳转方式,默认CAN_USE(详情页展示可使用按钮)
     * @return useMode
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "SELF_LINK", value = "核销跳转方式,默认CAN_USE(详情页展示可使用按钮)")
  
    public String getUseMode() {
      return useMode;
    }
  
  
    public void setUseMode(String useMode) {
      this.useMode = useMode;
    }
  
  
    public PaymentVoucherUseRule useUrl(String useUrl) {
      
      this.useUrl = useUrl;
      return this;
    }
  
     /**
     * 核销跳转链接 限制: 1、只有use_mode为SELF_LINK时该值有效且必传。 2、核销跳转链接必须是支付宝小程序链接。
     * @return useUrl
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "alipays://platformapi/startapp?appId=201911136XXXXX&noneExit=true", value = "核销跳转链接 限制: 1、只有use_mode为SELF_LINK时该值有效且必传。 2、核销跳转链接必须是支付宝小程序链接。")
  
    public String getUseUrl() {
      return useUrl;
    }
  
  
    public void setUseUrl(String useUrl) {
      this.useUrl = useUrl;
    }
  
  
    public PaymentVoucherUseRule voucherQuantityLimitPerUser(Integer voucherQuantityLimitPerUser) {
      
      this.voucherQuantityLimitPerUser = voucherQuantityLimitPerUser;
      return this;
    }
  
     /**
     * 每个支付宝账号的核销次数限制。 默认不限制
     * @return voucherQuantityLimitPerUser
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "1", value = "每个支付宝账号的核销次数限制。 默认不限制")
  
    public Integer getVoucherQuantityLimitPerUser() {
      return voucherQuantityLimitPerUser;
    }
  
  
    public void setVoucherQuantityLimitPerUser(Integer voucherQuantityLimitPerUser) {
      this.voucherQuantityLimitPerUser = voucherQuantityLimitPerUser;
    }
  
  
    public PaymentVoucherUseRule voucherQuantityLimitPerUserPeriodType(String voucherQuantityLimitPerUserPeriodType) {
      
      this.voucherQuantityLimitPerUserPeriodType = voucherQuantityLimitPerUserPeriodType;
      return this;
    }
  
     /**
     * 核销次数限制周期配置。默认值LIFE_CYCLE表示限制每个支付宝账号在整个活动期间核销次数。
     * @return voucherQuantityLimitPerUserPeriodType
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "DAY", value = "核销次数限制周期配置。默认值LIFE_CYCLE表示限制每个支付宝账号在整个活动期间核销次数。")
  
    public String getVoucherQuantityLimitPerUserPeriodType() {
      return voucherQuantityLimitPerUserPeriodType;
    }
  
  
    public void setVoucherQuantityLimitPerUserPeriodType(String voucherQuantityLimitPerUserPeriodType) {
      this.voucherQuantityLimitPerUserPeriodType = voucherQuantityLimitPerUserPeriodType;
    }
  
  
    public PaymentVoucherUseRule voucherValidPeriod(PaymentVoucherValidPeriod voucherValidPeriod) {
      
      this.voucherValidPeriod = voucherValidPeriod;
      return this;
    }
  
     /**
     * Get voucherValidPeriod
     * @return voucherValidPeriod
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "")
  
    public PaymentVoucherValidPeriod getVoucherValidPeriod() {
      return voucherValidPeriod;
    }
  
  
    public void setVoucherValidPeriod(PaymentVoucherValidPeriod voucherValidPeriod) {
      this.voucherValidPeriod = voucherValidPeriod;
    }
  
    /**
     * A container for additional, undeclared properties.
     * This is a holder for any undeclared properties as specified with
     * the 'additionalProperties' keyword in the OAS document.
     */
    private Map<String, Object> additionalProperties;
  
    /**
     * Set the additional (undeclared) property with the specified name and value.
     * If the property does not already exist, create it otherwise replace it.
     *
     * @param key name of the property
     * @param value value of the property
     * @return the PaymentVoucherUseRule instance itself
     */
    public PaymentVoucherUseRule putAdditionalProperty(String key, Object value) {
      if (this.additionalProperties == null) {
          this.additionalProperties = new HashMap<String, Object>();
      }
      this.additionalProperties.put(key, value);
      return this;
    }
  
    /**
     * Return the additional (undeclared) property.
     *
     * @return a map of objects
     */
    public Map<String, Object> getAdditionalProperties() {
      return additionalProperties;
    }
  
    /**
     * Return the additional (undeclared) property with the specified name.
     *
     * @param key name of the property
     * @return an object
     */
    public Object getAdditionalProperty(String key) {
      if (this.additionalProperties == null) {
          return null;
      }
      return this.additionalProperties.get(key);
    }
  
  
    @Override
    public boolean equals(Object o) {
      if (this == o) {
        return true;
      }
      if (o == null || getClass() != o.getClass()) {
        return false;
      }
      PaymentVoucherUseRule paymentVoucherUseRule = (PaymentVoucherUseRule) o;
      return Objects.equals(this.availableAppIds, paymentVoucherUseRule.availableAppIds) &&
          Objects.equals(this.availableGoods, paymentVoucherUseRule.availableGoods) &&
          Objects.equals(this.availableMerchant, paymentVoucherUseRule.availableMerchant) &&
          Objects.equals(this.availableStoreIds, paymentVoucherUseRule.availableStoreIds) &&
          Objects.equals(this.fixVoucher, paymentVoucherUseRule.fixVoucher) &&
          Objects.equals(this.unavailableGoodsIds, paymentVoucherUseRule.unavailableGoodsIds) &&
          Objects.equals(this.useMode, paymentVoucherUseRule.useMode) &&
          Objects.equals(this.useUrl, paymentVoucherUseRule.useUrl) &&
          Objects.equals(this.voucherQuantityLimitPerUser, paymentVoucherUseRule.voucherQuantityLimitPerUser) &&
          Objects.equals(this.voucherQuantityLimitPerUserPeriodType, paymentVoucherUseRule.voucherQuantityLimitPerUserPeriodType) &&
          Objects.equals(this.voucherValidPeriod, paymentVoucherUseRule.voucherValidPeriod)&&
          Objects.equals(this.additionalProperties, paymentVoucherUseRule.additionalProperties);
    }
  
    @Override
    public int hashCode() {
      return Objects.hash(availableAppIds, availableGoods, availableMerchant, availableStoreIds, fixVoucher, unavailableGoodsIds, useMode, useUrl, voucherQuantityLimitPerUser, voucherQuantityLimitPerUserPeriodType, voucherValidPeriod, additionalProperties);
    }
  
    @Override
    public String toString() {
      StringBuilder sb = new StringBuilder();
      sb.append("class PaymentVoucherUseRule {\n");
      sb.append("    availableAppIds: ").append(toIndentedString(availableAppIds)).append("\n");
      sb.append("    availableGoods: ").append(toIndentedString(availableGoods)).append("\n");
      sb.append("    availableMerchant: ").append(toIndentedString(availableMerchant)).append("\n");
      sb.append("    availableStoreIds: ").append(toIndentedString(availableStoreIds)).append("\n");
      sb.append("    fixVoucher: ").append(toIndentedString(fixVoucher)).append("\n");
      sb.append("    unavailableGoodsIds: ").append(toIndentedString(unavailableGoodsIds)).append("\n");
      sb.append("    useMode: ").append(toIndentedString(useMode)).append("\n");
      sb.append("    useUrl: ").append(toIndentedString(useUrl)).append("\n");
      sb.append("    voucherQuantityLimitPerUser: ").append(toIndentedString(voucherQuantityLimitPerUser)).append("\n");
      sb.append("    voucherQuantityLimitPerUserPeriodType: ").append(toIndentedString(voucherQuantityLimitPerUserPeriodType)).append("\n");
      sb.append("    voucherValidPeriod: ").append(toIndentedString(voucherValidPeriod)).append("\n");
      sb.append("    additionalProperties: ").append(toIndentedString(additionalProperties)).append("\n");
      sb.append("}");
      return sb.toString();
    }
  
    /**
     * Convert the given object to string with each line indented by 4 spaces
     * (except the first line).
     */
    private String toIndentedString(Object o) {
      if (o == null) {
        return "null";
      }
      return o.toString().replace("\n", "\n    ");
    }
  
  
    public static HashSet<String> openapiFields;
    public static HashSet<String> openapiRequiredFields;
  
    static {
      // a set of all properties/fields (JSON key names)
      openapiFields = new HashSet<String>();
      openapiFields.add("available_app_ids");
      openapiFields.add("available_goods");
      openapiFields.add("available_merchant");
      openapiFields.add("available_store_ids");
      openapiFields.add("fix_voucher");
      openapiFields.add("unavailable_goods_ids");
      openapiFields.add("use_mode");
      openapiFields.add("use_url");
      openapiFields.add("voucher_quantity_limit_per_user");
      openapiFields.add("voucher_quantity_limit_per_user_period_type");
      openapiFields.add("voucher_valid_period");
  
      // a set of required properties/fields (JSON key names)
      openapiRequiredFields = new HashSet<String>();
    }
  
   /**
    * Validates the JSON Object and throws an exception if issues found
    *
    * @param jsonObj JSON Object
    * @throws IOException if the JSON Object is invalid with respect to PaymentVoucherUseRule
    */
    public static void validateJsonObject(JsonObject jsonObj) throws IOException {
        if (jsonObj == null) {
          if (PaymentVoucherUseRule.openapiRequiredFields.isEmpty()) {
            return;
          } else { // has required fields
            throw new IllegalArgumentException(String.format("The required field(s) %s in PaymentVoucherUseRule is not found in the empty JSON string", PaymentVoucherUseRule.openapiRequiredFields.toString()));
          }
        }
        // ensure the json data is an array
        if (jsonObj.get("available_app_ids") != null && !jsonObj.get("available_app_ids").isJsonArray()) {
          throw new IllegalArgumentException(String.format("Expected the field `available_app_ids` to be an array in the JSON string but got `%s`", jsonObj.get("available_app_ids").toString()));
        }
        // validate the optional field `available_goods`
        if (jsonObj.getAsJsonObject("available_goods") != null) {
          PaymentVoucherAvailableGoods.validateJsonObject(jsonObj.getAsJsonObject("available_goods"));
        }
        // validate the optional field `available_merchant`
        if (jsonObj.getAsJsonObject("available_merchant") != null) {
          PaymentVoucherAvailableMerchant.validateJsonObject(jsonObj.getAsJsonObject("available_merchant"));
        }
        // ensure the json data is an array
        if (jsonObj.get("available_store_ids") != null && !jsonObj.get("available_store_ids").isJsonArray()) {
          throw new IllegalArgumentException(String.format("Expected the field `available_store_ids` to be an array in the JSON string but got `%s`", jsonObj.get("available_store_ids").toString()));
        }
        // validate the optional field `fix_voucher`
        if (jsonObj.getAsJsonObject("fix_voucher") != null) {
          PaymentFixVoucher.validateJsonObject(jsonObj.getAsJsonObject("fix_voucher"));
        }
        // ensure the json data is an array
        if (jsonObj.get("unavailable_goods_ids") != null && !jsonObj.get("unavailable_goods_ids").isJsonArray()) {
          throw new IllegalArgumentException(String.format("Expected the field `unavailable_goods_ids` to be an array in the JSON string but got `%s`", jsonObj.get("unavailable_goods_ids").toString()));
        }
        if (jsonObj.get("use_mode") != null && !jsonObj.get("use_mode").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `use_mode` to be a primitive type in the JSON string but got `%s`", jsonObj.get("use_mode").toString()));
        }
        if (jsonObj.get("use_url") != null && !jsonObj.get("use_url").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `use_url` to be a primitive type in the JSON string but got `%s`", jsonObj.get("use_url").toString()));
        }
        if (jsonObj.get("voucher_quantity_limit_per_user_period_type") != null && !jsonObj.get("voucher_quantity_limit_per_user_period_type").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `voucher_quantity_limit_per_user_period_type` to be a primitive type in the JSON string but got `%s`", jsonObj.get("voucher_quantity_limit_per_user_period_type").toString()));
        }
        // validate the optional field `voucher_valid_period`
        if (jsonObj.getAsJsonObject("voucher_valid_period") != null) {
          PaymentVoucherValidPeriod.validateJsonObject(jsonObj.getAsJsonObject("voucher_valid_period"));
        }
    }
  
    public static class CustomTypeAdapterFactory implements TypeAdapterFactory {
      @SuppressWarnings("unchecked")
      @Override
      public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
         if (!PaymentVoucherUseRule.class.isAssignableFrom(type.getRawType())) {
           return null; // this class only serializes 'PaymentVoucherUseRule' and its subtypes
         }
         final TypeAdapter<JsonElement> elementAdapter = gson.getAdapter(JsonElement.class);
         final TypeAdapter<PaymentVoucherUseRule> thisAdapter
                          = gson.getDelegateAdapter(this, TypeToken.get(PaymentVoucherUseRule.class));
  
         return (TypeAdapter<T>) new TypeAdapter<PaymentVoucherUseRule>() {
             @Override
             public void write(JsonWriter out, PaymentVoucherUseRule value) throws IOException {
               JsonObject obj = thisAdapter.toJsonTree(value).getAsJsonObject();
               obj.remove("additionalProperties");
               // serialize additonal properties
               if (value.getAdditionalProperties() != null) {
                 for (Map.Entry<String, Object> entry : value.getAdditionalProperties().entrySet()) {
                   if (entry.getValue() instanceof String)
                     obj.addProperty(entry.getKey(), (String) entry.getValue());
                   else if (entry.getValue() instanceof Number)
                     obj.addProperty(entry.getKey(), (Number) entry.getValue());
                   else if (entry.getValue() instanceof Boolean)
                     obj.addProperty(entry.getKey(), (Boolean) entry.getValue());
                   else if (entry.getValue() instanceof Character)
                     obj.addProperty(entry.getKey(), (Character) entry.getValue());
                   else {
                     obj.add(entry.getKey(), gson.toJsonTree(entry.getValue()).getAsJsonObject());
                   }
                 }
               }
               elementAdapter.write(out, obj);
             }
  
             @Override
             public PaymentVoucherUseRule read(JsonReader in) throws IOException {
               JsonObject jsonObj = elementAdapter.read(in).getAsJsonObject();
               validateJsonObject(jsonObj);
               // store additional fields in the deserialized instance
               PaymentVoucherUseRule instance = thisAdapter.fromJsonTree(jsonObj);
               for (Map.Entry<String, JsonElement> entry : jsonObj.entrySet()) {
                 if (!openapiFields.contains(entry.getKey())) {
                   if (entry.getValue().isJsonPrimitive()) { // primitive type
                     if (entry.getValue().getAsJsonPrimitive().isString())
                       instance.putAdditionalProperty(entry.getKey(), entry.getValue().getAsString());
                     else if (entry.getValue().getAsJsonPrimitive().isNumber())
                       instance.putAdditionalProperty(entry.getKey(), entry.getValue().getAsNumber());
                     else if (entry.getValue().getAsJsonPrimitive().isBoolean())
                       instance.putAdditionalProperty(entry.getKey(), entry.getValue().getAsBoolean());
                     else
                       throw new IllegalArgumentException(String.format("The field `%s` has unknown primitive type. Value: %s", entry.getKey(), entry.getValue().toString()));
                   } else { // non-primitive type
                     instance.putAdditionalProperty(entry.getKey(), gson.fromJson(entry.getValue(), HashMap.class));
                   }
                 }
               }
               return instance;
             }
  
         }.nullSafe();
      }
    }
  
   /**
    * Create an instance of PaymentVoucherUseRule given an JSON string
    *
    * @param jsonString JSON string
    * @return An instance of PaymentVoucherUseRule
    * @throws IOException if the JSON string is invalid with respect to PaymentVoucherUseRule
    */
    public static PaymentVoucherUseRule fromJson(String jsonString) throws IOException {
      return JSON.getGson().fromJson(jsonString, PaymentVoucherUseRule.class);
    }
  
   /**
    * Convert an instance of PaymentVoucherUseRule to an JSON string
    *
    * @return JSON string
    */
    public String toJson() {
      return JSON.getGson().toJson(this);
    }
  }
  
  